I have finally found the time to get some (radio) work done here and got my 2nd tower finished and I erected an inverted L, 10m vertical and 30m top rising to 15m at the far end. I still have the "ea
Tony, my remarks were not meant as critisism, just as a "warning" that the measured values should be interpreted with caution. About beverages: Typical length is 1 to 2 lambda, it seems that directiv
I am wondering whether this is due to the effect of a less that optimum ground condition. I see not reason why there should be an optimum length for a travelling wave antenna. If the height and groun
Tony, Rick, oops, it seems I responded to the wrong mail. My appologies for that, but I got confused by two Ri(c)k's on the reflector. 73, Rik ON7YD - OR7T ________________________________________ Va
Hi Roger. The soil here is well drained peaty topsoil about 400mm - 500mm deep on a mixture of slate and shale and although I am 500m from the sea, I am 75m above the water. I have no idea what the e
Comparing the two gave some very interesting results. 10 MHz CW L = S7 earth = S1 7 MHz CW L = S9 earth = S3 R. Bristol 1566 KHz L = 0 earth = S2 Doneba
HI Rik and Tony, It was no problem. I am simply confusing whether two electrodes (earth )antenna or one electrode as AC line antenna was experimeted. 7L1RLL Rick
Hello Tony, measuring voltages on untuned antennas is "tricky", in particular with small electrical antennas (compared to the wavelength) as these tend to have large reactive components. On 60kHz the
HI Tony, I will try to change my simple question now. Did you connect two wires and two earth rods [here after electrodes] such one electrode to antenna terminal and one electrode for receiver earth
Hi Rik, Yes ... exactly that. The "earth" that I attached to the "earth" terminal on the receiver was a reasonably good station earth and the wire that I attached to the antenna terminal was an 80m l
Hi Rik. I take your point, but I did say that it was "non-technical" The earth was the main station earth which is a short (1.5m) length of 22mm copper pipe to an earth mat and radials and was the sa
Hi Rick. Yes I think I can confirm that. I connected my signal generator to the earth antenna (300mV p-p at 150 KHz) and walked about with my long wave transistor radio and found maximum signal when
Hello Tony, Show us your RX earth terminal side and whether AC voltage supply or DC battery did you use for the experiment. AC line can be a good long antenna for receiving. 7L1RLL Rick
<<quote>> I have no idea what the electrical conductivity is but I imagine it's probably lower in the winter when my windows get a covering of salt during storms. Sorry that should have been HIGHER c
Hi Rik and Rik, Sorry, I too got confused by two Riks, should have looked at the callsigns. OK, my set up when I did the signal strength tests were, station earth (mat and radials) for both tests plu
HI Tony, Thanks for your reply to me. But I'm not clear on your reply. The other LF-gay said two electorodes between xx meters, but you said only one electrode of the antenna side. My question is on
Hi Tony, OK. We made a common understanding. I have heard that there is an orthogonal direction path between a wire antenna and earth antenna. This means that 90 degree each direction will get maximu
